IT'S A TEST! A forest fire began when lightning struck a tree.

A. Describe this type of reaction as either a chemical or physical reaction? Why?
B. Is the reaction endothermic of exothermic? Why?

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

Tell me the iupac names of the following alcohols:

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)